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【单选题】
制约关系分为相互制约关系和间接制约关系，选出以下关于制约关系的说法中错误的选项。 （ ）A.
直接相互制约的进程间有同步关系，间接相互制约的进程间有互斥关系。
B.
产生制约关系的原因是系统中存在临界资源。
C.
若计算机中的两个进程需要使用同一台打印机，那么这两个进程间存在同步关系。
D.
若能保证进程间互斥地进入自己的临界区，就能实现进程对临界资源的互斥访问。
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举一反三
【单选题】Currently, which of the following is the primary source of bank funds?
A.
Checkable deposits
B.
Non-transaction deposits
C.
Borrowings
D.
Bank capital
【判断题】Scaffolding refers to the layer of skill or knowledge which is just beyond that which the learner is currently capable of coping with.
A.
正确
B.
错误
【单选题】Currently, which of the following is NOT a permanent bank holiday?
A.
Good Friday
B.
Easter Monday
C.
Boxing Day
D.
Bonfire Night
【单选题】Which of the following is currently the least popular type of data collection?
A.
Internet surveys
B.
mall-intercept interviews
C.
door-to-door interviews
D.
telephone surveys
【判断题】Zone of Proximal Development used to refer to the layer of skill or knowledge which is just beyond that which the learner is currently capable of coping.
A.
正确
B.
错误
【单选题】1956年4月,毛泽东在调查研究的基础上发表了一篇重要讲话,讲话深刻论述了正确处理经济建设和社会发展中的一系列重大关系。这篇讲话是( )
A.
关于正确处理人民内部矛盾的问题》
B.
论十大关系》
C.
要团结一切可以团结的力量》
D.
在中共中央政治局扩大会议上的总结讲话》
【单选题】Which of the following method cannot be used to diagnose patients with currently infection of Leishmania donovani?
A.
Detection of amastigote by bone marrow puncture
B.
Examination of promastigotes by in vitro culture
C.
Detection of antibodies
D.
Animal inoculation test for amastigotes
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